background image

MO-507 

ECN 5577-MA 190924 

 

 

 
 
 

ECM OPERATION MANUAL 

 

 

 

FOR USE WITH MODELS: 

 

OL11-105FDBE 

OL16-125FDBE 

OL11-105RDBE 

OL16-125RDBE 

    

 

 

 

:  IF  YOU  DO  NOT  FOLLOW  THE  SAFETY  PRECAUTIONS  BELOW  AND  IN  THIS  MANUAL,  A 

FIRE  OR  EXPLOSION  MAY  RESULT  CAUSING  PROPERTY  DAMAGE,  PERSONAL  INJURY,  OR  LOSS  OF 
LIFE. 

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF 
THIS OR ANY OTHER APPLIANCE. 

 
 

INSTALLATION  AND  SERVICE  MUST  BE  PERFORMED  BY  A  QUALIFIED  INSTALLER,  SERVICE  AGENCY 
OR  THE  GAS  SUPPLIER.  (REFERRED  TO  IN  THESE  INSTRUCTIONS  AS  A  QUALIFIED  HEATING 
CONTRACTOR). 

 
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE 
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE 
HOMEOWNER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE 
PERSONNEL.  
 

 

 

 

 
 
 
 
 
 
 
 
 
 

 

 

THERMO PRODUCTS, LLC. 

 

 

 

 

BOX 237 

 

 

 

 

DENTON, NC 27239

 

 

 

PHONE: 800-476-4328 

             MADE IN USA

Summary of Contents for OL11-105FDBE

Page 1: ...DS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER SERVICE AGENCY OR THE GAS SUPPLIER REFERRED TO IN THESE INSTRUCTIONS AS A QUALIFIE...

Page 2: ......

Page 3: ...I BLOWER CONTROL INFORMATION 1 A TERMINAL DEFINITIONS FIELD WIRING 1 B WIRING SWITCHES 2 C INPUTS 4 D OUTPUTS 4 E OPERATING MODES 5 F CFM TABLES 7 G ECM SPECIFIC REPLACEMENT PARTS 8 III ECM TROUBLESH...

Page 4: ...mostat call for heat R 24 VAC to thermostat G Thermostat call for fan Y Thermostat call for cool DEHUM Humidistat call for dehumidification TXV systems ONLY Thermostat Humidistat connections for 2 Sta...

Page 5: ...All installations and services must be performed by qualified service personnel 2 B WIRING SWITCHES OL11 OL16 LOWBOY Figure 1 BLOWER WIRING...

Page 6: ...lations and services must be performed by qualified service personnel 3 TURN OFF THE ELECTRICAL POWER to the furnace before attempting to disconnect blower wiring Figure 2 BOARD LAYOUT WITH SWITCHES B...

Page 7: ...oling is recognized when the thermostat connects Y to R This input has an indicator LED that will light when the control receives a call for cooling Refer to the Cool Mode section for the control oper...

Page 8: ...their respective thermostat connections W Y G and DEHUM and operate whenever a call is present See Diagnostic Features for a function description of operation Motor CFM LED This green LED will flash...

Page 9: ...d low fire is activated for 15 minutes If a call for heat still exists high fire will be activated and will continue until the demand for heat has been satisfied Counterflow units in addition will run...

Page 10: ...es their tabular values are enacted when their function is called Three additional dip switches select 8 heating speeds which are enacted when heat is called This allows independent selection of heati...

Page 11: ...rness 350271 350271 Transformer 350464 350464 Power Choke 350855 COOLING SPEEDS HEATING SPEEDS TEMPERATURE RISE F Rise CFM COOL LOW DEHUM 3 ON 6 OFF 2 OFF 5 OFF 1 OFF 4 OFF 3 ON 6 OFF 2 OFF 5 OFF 1 ON...

Page 12: ...servicing motor Wait at least 5 minutes after disconnecting power before opening motor SYMPTOM CAUSE PROCEDURE Motor rocks slightly when starting This is normal start up for ECM Motor won t start No...

Page 13: ...moving panel or filter reduce puffing Reduce restriction Reduce max airflow Evidence of Moisture Motor failure or malfunction has occurred and moisture is present Replace motor and perform Moisture Ch...

Page 14: ...rain plugged Check for low airflow too much latent capacity Check for undercharged condition Check and plug leaks in return ducts cabinet Comfort Check Check proper airflow settings Low static pressur...

Page 15: ...TO MOTOR IF CONNECTIONS ARE GOOD AND MOTOR STILL DOES NOT RUN REPLACE MOTOR THIS GUIDE SHOULD BE USED IN THE CASE OF A STOPPED OR MANFUNCTIONED ECM BLOWER MOTOR THE FOLLOWING SHOULD HELP ESTABLISH THE...

Page 16: ...Status LED Off 1 HEAT mode On 2 BLOWER HEAT 3 Status LED Flashes 1 COOL mode On 2 Blower On Delay Started 3 Condenser On 4 Status LED On continuous 1 FAN mode On 2 BLOWER LOW 3 Status LED On continuo...

Page 17: ...Fire Connect 2 Stage T stat to both W1 and W2 Single Stage T stat W2 Connect single stage T stat to W2 only BLOWER Speeds HEAT The Heating Blower speed selected by positions 1 2 3 of SW1 CFM tables o...

Reviews: